SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) Warning: Permanently added '10.128.0.80' (ED25519) to the list of known hosts. 2026/02/21 22:02:30 parsed 1 programs [ 72.989575][ T5830] cgroup: Unknown subsys name 'net' [ 73.098215][ T5830] cgroup: Unknown subsys name 'cpuset' [ 73.107950][ T5830] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 74.523706][ T5830] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 77.359491][ T5843] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 79.543293][ T5901] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 79.551887][ T5901] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 79.559838][ T5901] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 79.568792][ T5901] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 79.577786][ T5901] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 79.961242][ T5907] chnl_net:caif_netlink_parms(): no params data found [ 80.059871][ T5907] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.067902][ T5907] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.075566][ T5907] bridge_slave_0: entered allmulticast mode [ 80.083093][ T5907] bridge_slave_0: entered promiscuous mode [ 80.093270][ T5907] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.100718][ T5907] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.108176][ T5907] bridge_slave_1: entered allmulticast mode [ 80.115931][ T5907] bridge_slave_1: entered promiscuous mode [ 80.148375][ T5907] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.161007][ T5907] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.196422][ T5907] team0: Port device team_slave_0 added [ 80.204980][ T5907] team0: Port device team_slave_1 added [ 80.233143][ T5907] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.240728][ T5907] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 80.266752][ T5907] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.280047][ T5907] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.287073][ T5907] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 80.313178][ T5907] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.358706][ T5907] hsr_slave_0: entered promiscuous mode [ 80.366333][ T5907] hsr_slave_1: entered promiscuous mode [ 80.515351][ T5907] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.528111][ T5907] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.539409][ T5907] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.551184][ T5907] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.638561][ T5907] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.663057][ T5907] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.678003][ T114] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.685366][ T114] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.703274][ T114] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.710561][ T114] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.882329][ T5907] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.938334][ T5907] veth0_vlan: entered promiscuous mode [ 80.952335][ T5907] veth1_vlan: entered promiscuous mode [ 80.986116][ T5907] veth0_macvtap: entered promiscuous mode [ 80.996629][ T5907] veth1_macvtap: entered promiscuous mode [ 81.019859][ T5907] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.040205][ T5907] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.059117][ T114] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.069862][ T114] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.078840][ T114] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.092006][ T114] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.214228][ T58] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.267807][ T58] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.325985][ T58] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.370823][ T1051] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.380067][ T1051] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.406872][ T58] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 81.434277][ T114] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.442904][ T114] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/02/21 22:02:41 executed programs: 0 [ 81.980203][ T5901] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.989036][ T5901] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.997110][ T5901] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 82.007350][ T5901] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 82.017249][ T5901] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 82.172648][ T5937] chnl_net:caif_netlink_parms(): no params data found [ 82.246361][ T5937] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.254283][ T5937] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.261774][ T5937] bridge_slave_0: entered allmulticast mode [ 82.269614][ T5937] bridge_slave_0: entered promiscuous mode [ 82.281575][ T5937] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.289419][ T5937] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.297557][ T5937] bridge_slave_1: entered allmulticast mode [ 82.305348][ T5937] bridge_slave_1: entered promiscuous mode [ 82.347494][ T5937] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.360611][ T5937] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.396625][ T5937] team0: Port device team_slave_0 added [ 82.406637][ T5937] team0: Port device team_slave_1 added [ 82.437247][ T5937] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.444912][ T5937] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 82.472035][ T5937] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.488701][ T5937] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.496217][ T5937] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 82.522738][ T5937] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.573568][ T5937] hsr_slave_0: entered promiscuous mode [ 82.580401][ T5937] hsr_slave_1: entered promiscuous mode [ 82.587524][ T5937] debugfs: 'hsr0' already exists in 'hsr' [ 82.593413][ T5937] Cannot create hsr debugfs directory [ 84.075353][ T5901] Bluetooth: hci0: command tx timeout [ 84.164722][ T58] bridge_slave_1: left allmulticast mode [ 84.170721][ T58] bridge_slave_1: left promiscuous mode [ 84.180534][ T58] bridge0: port 2(bridge_slave_1) entered disabled state [ 84.196225][ T58] bridge_slave_0: left allmulticast mode [ 84.201928][ T58] bridge_slave_0: left promiscuous mode [ 84.209032][ T58] bridge0: port 1(bridge_slave_0) entered disabled state [ 84.417531][ T58] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 84.435100][ T58] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 84.446351][ T58] bond0 (unregistering): Released all slaves [ 84.559362][ T58] hsr_slave_0: left promiscuous mode [ 84.567078][ T58] hsr_slave_1: left promiscuous mode [ 84.573318][ T58] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 84.580903][ T58] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 84.605402][ T58] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 84.612884][ T58] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 84.630345][ T58] veth1_macvtap: left promiscuous mode [ 84.641205][ T58] veth0_macvtap: left promiscuous mode [ 84.648286][ T58] veth1_vlan: left promiscuous mode [ 84.653616][ T58] veth0_vlan: left promiscuous mode [ 84.806337][ T58] team0 (unregistering): Port device team_slave_1 removed [ 84.820790][ T58] team0 (unregistering): Port device team_slave_0 removed [ 85.183354][ T5937] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.213398][ T5937] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.233699][ T5937] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.249770][ T5937] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.525478][ T5937] 8021q: adding VLAN 0 to HW filter on device bond0 [ 85.548466][ T5937] 8021q: adding VLAN 0 to HW filter on device team0 [ 85.566808][ T49] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.574171][ T49] bridge0: port 1(bridge_slave_0) entered forwarding state [ 85.601730][ T49] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.608868][ T49] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.667933][ T5937] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 85.821198][ T5937] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 85.872145][ T5937] veth0_vlan: entered promiscuous mode [ 85.884214][ T5937] veth1_vlan: entered promiscuous mode [ 85.918210][ T5937] veth0_macvtap: entered promiscuous mode [ 85.929482][ T5937] veth1_macvtap: entered promiscuous mode [ 85.953798][ T5937] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 85.967977][ T5937] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 85.984993][ T49] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 85.994200][ T49] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.018680][ T49] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.027991][ T49] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 86.079065][ T12] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.087292][ T12] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 86.116206][ T58] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 86.124064][ T58] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 86.165657][ T5901] Bluetooth: hci0: command tx timeout syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build782803525=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at d6526ea3e6a nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d6526ea3e6ad9081c902859bbb80f9f840377cb4 -X github.com/google/syzkaller/prog.gitRevisionDate=20251126-113115" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"d6526ea3e6ad9081c902859bbb80f9f840377cb4\" /usr/bin/ld: /tmp/ccsZhz9d.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null